NEXON 3.0 EV DTC Troubleshooting Document for VCU Version: 2.0 Date: 22-Sep-2023 Copyright © TATA MOTORS Ltd. This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author. P3064 - 17: - Sensor supply Module 1 - circuit voltage above threshold Overview: ISO Code P3064 - 17 Customer Symptom Vehicle not drivable or drivable in Limp home depending on the sensors affected by supply module 1 being Overvoltage Fault Effects (On Vehicle) Vehicle not drivable or drivable in Limp home depending on the sensors affected Lamp Status (If Any) Lamp indications according to the respective sensor malfunction which are supplied by supply module 1 Fault Detection Condition Sensor detects Overvoltage of power supply resulting in sensor related DTCs Normal Operating Condition Sensor gets proper power supply Probable Trouble Area LV harness between VCU supply module 1 to sensor supply Healing Condition If DTC is healed, DTC is present only in memory Component Details: Sensor supply module provides power supply to sensors- Accelerator pedal sensor 1, Brake pedal sensor 1 and Vacuum Pressure sensor Preliminary Checks: 1. Check for any damage to LV wiring harness connections between sensor supply of Accelerator pedal sensor and VCU. 2. Visually inspect Accelerator pedal sensor for any damage. Troubleshooting: Step No. Description Check point If Yes If No 1. Switch Vehicle to Ignition ON Mode Check for the fault code using TML diagnostic tool. If DTC related to P3003 (Accelerator pedal sensor 1) is present? Check the corresponding DTC troubleshooting first, then Go to Step 4 Check if any other fault is present 2. Switch vehicle Ignition OFF. Remove the LV battery connector. Vehicle is in Ignition OFF mode? Go to step 3 Go to step 2
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